GB2486491A - Water heating system and a method of supplying hot water - Google Patents

Water heating system and a method of supplying hot water Download PDF

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Publication number
GB2486491A
GB2486491A GB1021449.2A GB201021449A GB2486491A GB 2486491 A GB2486491 A GB 2486491A GB 201021449 A GB201021449 A GB 201021449A GB 2486491 A GB2486491 A GB 2486491A
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GB
United Kingdom
Prior art keywords
water
tank
storage tank
temperature
boiler
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
GB1021449.2A
Other versions
GB201021449D0 (en
Inventor
Darran John Smith
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ALPHA THERM Ltd
Original Assignee
ALPHA THERM Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by ALPHA THERM Ltd filed Critical ALPHA THERM Ltd
Priority to GB1021449.2A priority Critical patent/GB2486491A/en
Publication of GB201021449D0 publication Critical patent/GB201021449D0/en
Publication of GB2486491A publication Critical patent/GB2486491A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H8/00—Fluid heaters characterised by means for extracting latent heat from flue gases by means of condensation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D12/00—Other central heating systems
    • F24D12/02—Other central heating systems having more than one heat source
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D17/00—Domestic hot-water supply systems
    • F24D17/0026—Domestic hot-water supply systems with conventional heating means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D17/00—Domestic hot-water supply systems
    • F24D17/0036—Domestic hot-water supply systems with combination of different kinds of heating means
    • F24D17/0042—Domestic hot-water supply systems with combination of different kinds of heating means recuperated waste heat and solar energy
    • F24D17/0047—Domestic hot-water supply systems with combination of different kinds of heating means recuperated waste heat and solar energy with accumulation of the heated water
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D19/00—Details
    • F24D19/10—Arrangement or mounting of control or safety devices
    • F24D19/1006—Arrangement or mounting of control or safety devices for water heating systems
    • F24D19/1051—Arrangement or mounting of control or safety devices for water heating systems for domestic hot water
    • F24D19/1057—Arrangement or mounting of control or safety devices for water heating systems for domestic hot water the system uses solar energy
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D2200/00—Heat sources or energy sources
    • F24D2200/14—Solar energy
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D2200/00—Heat sources or energy sources
    • F24D2200/16—Waste heat
    • F24D2200/18—Flue gas recuperation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D2220/00—Components of central heating installations excluding heat sources
    • F24D2220/02—Fluid distribution means
    • F24D2220/0271—Valves
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B10/00—Integration of renewable energy sources in buildings
    • Y02B10/20—Solar thermal
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B10/00—Integration of renewable energy sources in buildings
    • Y02B10/70—Hybrid systems, e.g. uninterruptible or back-up power supplies integrating renewable energies
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/18—Domestic hot-water supply systems using recuperated or waste heat

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Heat-Pump Type And Storage Water Heaters (AREA)

Abstract

The water heating system comprises a water storage tank 6, boiler 2 (e.g. condensing boiler), separate water heating system 8, additional tank 52 arranged to receive hot emissions from the boiler, and a pump system. The pump system is connected to the storage tank and is arranged to direct water from the storage tank to either the separate water heating system or the additional tank depending upon the state of the separate water heating system and the additional tank. The pump system may comprise a pump 30 and a control valve 32 controlled by a controller 60, the controller commanding the pump and valve to direct water from the storage tank based upon temperature measurements taken by sensors 12,56. The additional tank may comprise a boiler heat recovery system 4 that collects condensation produced by exhaust fumes of the condensing boiler, the heat from the condensate being passed to water in coil 54. The separate water heating system may comprise a renewable energy system such as a solar collector 10 having a drain back tank 16 and a heat exchanger 18. The system may also comprise a mains water supply 42. A method of heating water is also claimed.

Description

WATER HEATING
The invention relates to a system and method for water heating.
Hot water is frequently provided in commercial and domestic premises using a boiler. Such boilers are typically powered by gas or oil. There is an increasing demand for energy efficiency and also for the use of renewable energy resources to assist in heating.
For this reason, an alternative approach to a water heating system is to use a renewable energy supply, and a particular example is to use solar heating.
Water is heated in a solar panel, and passed into a tank sometimes known as a "drain back tank" which has a heat exchanger. Heat is exchanged in the heat exchanger with water from a hot water tank to heat the water, after which the water is passed back to the hot water tank. The use of a heat exchanger keeps the water in the solar panel and drain back tank separate from the water in the hot water system which is supplied to the user. This means that the water in the solar panel may, for example, include anti-freeze.
The heating of the water in the hot water tank is typically continuous, by pumping the water from the tank to the heat exchanger and back, if there is enough sunshine to heat the water, until the water in the hot water tank reaches a desired temperature.
According to a first aspect of the invention there is provided a heating system according to claim 1.
Systems which use a separate system such as a renewable heating system such as a solar water heater together with an additional boiler may store the water in a storage tank. Since the stored water may not be hot enough for use, the system may be combined with a boiler such as a combination boiler to provide additional heating.
The inventors have realised that by adding a tank to the boiler for collecting hot emissions, inventors have realised that, it is possible to provide additional heating to the storage tank from the additional tank even during periods of minimal renewable energy supply. Such additional heating in the storage tank used to provide the water to feed the boiler reduces the energy demands of the boiler in colder weather.
Note that in general the boiler is not itself used to heat the water in the storage tank, only the additional heat in the tank for collecting hot emissions.
In particular, the inventors have realised that by determining the temperature of the separate system and the tank for collecting hot emissions it is possible to route water in the storage tank through whichever is more appropriate, given the temperatures and other factors such as the time of day.
It should be noted that the use of an additional tank attached to a boiler for pre-heating water has previously been suggested. However, the previous use is to pre-heat water immediately before passing water through the boiler, which in this case is a combination boiler, to speed up the turn-on time before the combination boiler delivers hot water and therefore reduce fuel consumption when providing short bursts of hot water. As far as the inventors are aware, the use of such an additional tank has not been combined with a a solar water heating system with a separate storage tank.
In another aspect, there is provided a method according to claim 7.
For a better understanding of the invention an embodiment will now be described, purely by way of example, with reference to the accompanying drawing, in which: Figure 1 shows a schematic diagram of a complete system.
The figure is schematic and not to scale.
Referring to Figure 1, the system includes a combination condensing gas boiler 2, a heat recovery system 4, a storage tank 6 for holding hot or warm water, and a renewable energy system 8.
The renewable energy system 8 includes a solar collector 10 which circulates water containing additives (sometimes only water is used) through connecting pipes 14 to drain-back unit 16. The solar collector includes a sensor 12 The drain back unit includes, a heat exchanger 18 and a drain back pump 20 for pumping the water containing additives in a loop through the heat exchanger 18 and solar collector 10. The drain-back unit 16 has a first water inlet 22 and a first water outlet 24 through which water for supply to the user may be passed through the heat exchanger 18 to heat the water passing between the first water inlet 22 and the first water outlet 24.
Storage tank 6 is used as a hot water storage tank to store the water heated by the renewable energy system 8. Water is pumped out of the storage tank at first storage tank outlet 38 by heating pump 30 connected to the first storage tank outlet 38 and passed through control valve 32, which can direct the water to the heat recovery system 4 or the renewable energy system 8. In the case that the water is directed to the renewable energy system 8, the water is pumped from control valve 32 to the first water inlet 22 and then through heat exchanger 18 to the first water outlet 24 which feeds the water back into the tank by first storage tank inlet 36. The heating pump 30 and control valve 32 together make up a pump system.
Boiler 2 is a combination boiler of condensing type with a flue 50. The flue 50 is connected to the heat recovery system 4 which in the embodiment described is a "Gassaver" heat recovery system sold by Alphatherm Ltd. The heat recovery system 4 includes a collection tank 52 which collects the emissions -in this case condensate (condensing gas fluid) -from the boiler 2 and a pipe coil 54 passing through the collection tank 52. The pipe coil is connected to the control valve 32 and to the first storage tank inlet 36.
In the embodiment, the collection tank 52 is made from stainless steel to resist the corrosive properties of condensate. The tank material acts as a heat sink for the element, transferring heat to the condensate inside. A thin layer of insulation (not shown for clarity) is wrapped around the collection tank 52 to reduce external heat loss.
When the control valve 32 directs water through the pipe coil 54 rather than the heat exchanger 18 of the renewable energy system 8 water is heated in the pipe coil before being returned to storage tank 6.
The storage tank 6 is supplied from cold water supply 42 through second storage tank inlet 34 and hot or warm water is supplied from the storage tank 6 through second storage tank outlet 40. The second storage tank outlet 40 is at the top of the storage tank 6 to collect the warmer water in the storage tank 6.
The second storage tank outlet 40 is connected through thermostatically controlled diverter valve 44 to hot water supply 46 which may be connected to a number of taps in a user's hot water system. If the water in the storage tank 6 is hot enough, the water is controlled by diverter valve 44 to pass to hot water system 46 through cold water mixing valve 48 which mixes in additional cold water if required to avoid the water supplied to the hot water system 46 being too hot. One example of a suitable diverter valve 44 is proposed in GB2451 362.
If on the other hand the water in the storage tank 6 is not hot enough, that is to say less than a predetermined minimum temperature for supply of hot water in the system, the water in the storage tank 6 passes through thermostatically controlled diverter valve 44 through boiler 2 which heats the water and then supplies it to the hot water system 46.
When a consumer switches on a hot tap connected to hot water supply 46, the water input into the boiler 2 will be pre-heated. This both increases the speed at which the boiler 2 can deliver hot water and reduces the amount of gas that needs to be burnt to provide the delivery. Thus, the use of the storage tank significantly reduces fuel consumption. Unlike the conventional system using solar power, the use of the tank 52 means that this reduction occurs not just in summer but also in winter.
It will be appreciated that a number of variations of the system are possible.
For example, the above system uses a gas condensing combination boiler.
Those skilled in the art will be familiar with boilers which use a variety of sources of power, including for example oil, and any of these may be used where appropriate.
The temperature set by the thermostatically controlled diverter and mixing valves 44,48 may be varied depending on the properties of the system and in particular the required water temperature.
The system may be controlled by controller 60 which accepts input from the temperature sensor 12 in the solar panel 10, a temperature sensor 56 in the collection tank 52, and a temperature sensor 58 on the storage tank 6.
The controller 60 controls the pumps 30, 20 as well as valve 32 to pass water through the heat exchanger 18 in renewable energy system 8 when the temperature of the renewable energy system is greater than that in the storage tank 6 as well as greater than that in the collection tank 52, and to pass water through the pipe coil 54 in the heat recovery system 4 when the temperature in the heat recovery system 4 is greater than that in the storage tank 6 as well as greater than that in the renewable energy system 8. In other words, the controller 60 passes water through the hotter of the solar system 8 and the heat recovery system 4 to maximise the heating.
Thus, in this embodiment the state of each the various parts of the system is effectively determine only by the measured temperatures.
In alternative embodiments, more sophisticated control strategies may be used taking into account the time of day, amount of sun, temperature outside, and other factors that may be relevant such as expected usage. Thus, in this case, the state of the parts of the system in a more general sense may be used, not just the temperature of those parts of the system.
Alternative sources of energy may also be used. For example, the heat exchanger 18 may be substituted with an alternative heat source driven by a wind turbine and hence provide hot water without using boiler 2 in windy conditions. The alternative heat source is preferably renewable.
In alternative embodiments the heating pump 30 and control valve 32 may be replaced by separate pumps connected to drive water to the renewable energy system and the heat recovery system respectively. One or other of these may then be controlled to be driven to drive water through the required renewable energy system or heat recovery system as required.

Claims (14)

  1. CLAIMS1. A heating system, comprising: a storage tank for holding heated water; a separate system for heating water; a boiler for heating water; a tank for collecting hot emissions from the boiler; a pump system connected to heat water in the storage tank by passing water from the storage tank through the separate system or the tank for collecting hot emissions depending on the state of the separate system and the tank for collecting hot emissions.
  2. 2. A heating system according to claim 1: wherein the separate system is arranged to heat water passing between a first water input and a first water outlet, the first water outlet being connected to the storage tank; the tank for collecting hot emissions from the boiler is arranged to heat water passing between a second water inlet and a second water outlet, the second water outlet being connected to the storage tank; and the heating system further comprises a control valve connected to the storage tank and to the first water input and the second water input for directing water controllably from the storage tank to the separate system or the tank for collecting hot emissions.
  3. 3. A heating system according to claim 1 or 2 further comprising a diverter valve connected to the storage tank as well as to the boiler and to a hot water supply for passing water to the hot water supply directly if the water temperature in the storage tank exceeds a predetermined value or indirectly through the boiler if the water temperature in the storage tank does not exceed the predetermined value.
  4. 4. A heating system according to claim 1, 2 or 3 wherein the separate system for heating water is a renewable energy system.
  5. 5. A heating system according to claim 4 wherein the separate system is a solar hot water system having a drain back tank, and a pipe passing from the first water input to the first water outlet through the drain back tank.
  6. 6. A heating system according to any preceding claim wherein the state of the separate system is determined by the temperature of at least part of the separate system and the state of the tank for collecting hot emissions is determined by the temperature of the tank for collecting hot emissions.
  7. 7. A heating system according to any preceding claim further comprising: a temperature sensor in the tank for collecting hot emissions; a temperature sensor in the separate system; a temperature sensor in the storage tank; and a controller arranged to control the control valve: to pass water through the separate system when the temperature in the separate system is greater than the temperature in the storage tank as well as greater than the temperature in the collection tank, and to pass water through the tank for collecting hot emissions when the temperature in the tank for collecting hot emissions is greater than that in the storage tank as well as greater than that in the separate system.
  8. 8. A heating system according to any preceding claim wherein the boiler is a combination boiler.
  9. 9. A heating system according to any preceding claim wherein the control valve is a thermostatic valve.
  10. 10. A method of supplying hot water using a boiler having a tank for collecting hot emissions from the boiler and a separate system for heating water, comprising: pumping water from a storage tank through the separate system for heating water or the tank for collecting hot emissions depending on the state of the separate system and the state of the tank for collecting hot emissions, and passing the water back into the storage tank; and taking water from a storage tank and passing it to a hot water supply either directly or indirectly through the boiler.
  11. 11. A method according to claim 10 wherein the state of the separate system is determined by the temperature of at least part of the separate system and the state of the tank for collecting hot emissions is determined by the temperature of the tank for collecting hot emissions.
  12. 12. A method according to claim 10 or 11 wherein the separate system for heating water is a solar hot water system.
  13. 13. A method according to claim 10, 11 or 12 wherein in the step of pumping water: water is pumped through the separate system when the temperature in the separate system is greater than the temperature in the storage tank as well as greater than the temperature in the tank for collecting hot emissions, and water is pumped through the tank for collecting hot emissions when the temperature in the tank for collecting hot emissions is greater than that in the storage tank as well as greater than that in the separate system.
  14. 14. A method according to any of claims 10 to 13 including passing water to the hot water supply directly if the water temperature in the storage tank exceeds a predetermined value or indirectly through the boiler if the water temperature in the storage tank does not exceed the predetermined value.
GB1021449.2A 2010-12-17 2010-12-17 Water heating system and a method of supplying hot water Withdrawn GB2486491A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1021449.2A GB2486491A (en) 2010-12-17 2010-12-17 Water heating system and a method of supplying hot water

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1021449.2A GB2486491A (en) 2010-12-17 2010-12-17 Water heating system and a method of supplying hot water

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GB201021449D0 GB201021449D0 (en) 2011-02-02
GB2486491A true GB2486491A (en) 2012-06-20

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GB1021449.2A Withdrawn GB2486491A (en) 2010-12-17 2010-12-17 Water heating system and a method of supplying hot water

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2778540A1 (en) * 2013-03-11 2014-09-17 Kübler GmbH Method and assembly for heating buildings with infra-red heating
WO2015135426A1 (en) * 2014-03-10 2015-09-17 翟永义 Solar energy and thermal energy alternated heating and hot water supply ventilation and circulation system
NL2016598B1 (en) * 2016-04-13 2017-11-07 Rode Simon Heating device of a home.

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4037786A (en) * 1975-08-15 1977-07-26 International Telephone And Telegraph Corporation Energy recovery and storage system
JPS6152557A (en) * 1984-08-21 1986-03-15 Matsushita Electric Works Ltd Heat collecting device
NL1027140C2 (en) * 2004-09-29 2006-04-03 Itho B V Installation for heating tapwater comprises a storage tank, a low-power heating unit, a boiler and a common feed pipe for supplying water from the tank to the heating unit and boiler
GB2420174A (en) * 2004-11-12 2006-05-17 Heatworx Ltd Boiler flue gas heat exchanger with a thermal store and transfer means for preheating water
GB2463512A (en) * 2008-08-20 2010-03-17 Dedicated Pressure Systems Ltd Flue gas heat recovery system

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4037786A (en) * 1975-08-15 1977-07-26 International Telephone And Telegraph Corporation Energy recovery and storage system
JPS6152557A (en) * 1984-08-21 1986-03-15 Matsushita Electric Works Ltd Heat collecting device
NL1027140C2 (en) * 2004-09-29 2006-04-03 Itho B V Installation for heating tapwater comprises a storage tank, a low-power heating unit, a boiler and a common feed pipe for supplying water from the tank to the heating unit and boiler
GB2420174A (en) * 2004-11-12 2006-05-17 Heatworx Ltd Boiler flue gas heat exchanger with a thermal store and transfer means for preheating water
GB2463512A (en) * 2008-08-20 2010-03-17 Dedicated Pressure Systems Ltd Flue gas heat recovery system

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2778540A1 (en) * 2013-03-11 2014-09-17 Kübler GmbH Method and assembly for heating buildings with infra-red heating
CN104048349A (en) * 2013-03-11 2014-09-17 屈布勒有限公司 Method and configuration for heating buildings with an infrared heater
CN104048349B (en) * 2013-03-11 2019-05-28 屈布勒有限公司 Method and apparatus for using infrared ray heating plant being building heating
WO2015135426A1 (en) * 2014-03-10 2015-09-17 翟永义 Solar energy and thermal energy alternated heating and hot water supply ventilation and circulation system
NL2016598B1 (en) * 2016-04-13 2017-11-07 Rode Simon Heating device of a home.

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